table {
    width: 400px;
    border-collapse: collapse;
    margin: 100px auto;
}
thead th{
    border: 2px solid black;
    background-color: skyblue;
    text-align: center;
}
tbody td{
    border: 2px solid black;
    text-align: center;
}
a {
    text-decoration: none;
    color: black;
}
a:hover {
    color: red;
}